ci: add Linux and Windows build workflow for Gitea Actions

.gitea/workflows/build-windows.yml

@@ -0,0 +1,40 @@
+name: Build Windows
+on: [push]
+
+jobs:
+  build-windows:
+    runs-on: windows-latest
+    defaults:
+      run:
+        shell: msys2 {0}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21' # Adjust to your version
+
+      - name: Setup MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: MINGW64
+          update: true
+          install: >-
+            mingw-w64-x86_64-gcc
+            mingw-w64-x86_64-opus
+            mingw-w64-x86_64-portaudio
+            pkg-config
+
+      - name: Build TUI
+        run: |
+          # Ensure Go can find the C libraries via pkg-config
+          export CGO_ENABLED=1
+          go build -o dist/tui_windows.exe ./cmd/tui
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: tui-windows-binary
+          path: dist/tui_windows.exe